Its said that almost every mechanic can be reduced to a split card or kicker, and Unglued 2 codified it first
That gives us bird powerhouses like Derevi, Empyrial Tactician, Falco Spara, Pactweaver, and the bird of birds, Birds of Paradise provides us with access to birds-matter staples like Soulcatchers' Aerie, Flurry of Wings, and Tawnos, the Toymaker and, of course, green brings some of the best land ramp and landfall cards, with staples like Scute Swarm and Tatyova, Benthic Druid: And that's just looking at existing cards Final Fantasy has a good chunk of new bird and landfall toys to play with
On the other hand, many creature lands stay lands when they animate themselves, like Faceless Haven
If you can leverage this by having the best permanent left over, your opponents will rarely make a comeback